After being lured into a trap by a party invitation, Chopper must save all worlds from a new group of foes from different dimensions and an old enemy. Can he and his friends save all worlds? Or will they be destined to be destroyed in a matter of time...

It's been two years since Chopper saved the Mushroom Kingdom, but now there's a problem for the whole universe! He must collect the twenty Crystal Stars around Rogueport, but he certainly cannot do this alone. Will the universe be saved from this dark evil? Or will it plunge into darkness for eternity.

With Mario on a vacation, Bowser sets out to kidnap Princess Peach...and to be safe, he steals the Star Rod. But stealing it made the Star God angry. Without Mario to help, who will stop Bowser? Unfortunately, not Luigi... But who?